Maths in English

[Ju]

Would you correct and explain the grammer and usage with examples for me please? I get to make it clear as I need to teach my daughter.

1. divide 6 into 30 is 5
2. divide 30 by 6 is 5
3. multiply 3 by 5 is 15 (means 5 x 3, right?)
4. 3 multiplied by 5 is 15 (means 3 x 5, right?)
5. add 2 to 5 is 7
6. 2 plus 5 is 7
7. substract 6 from 9 is 3
8. 9 minus 6 is 3
9. if you take 6 from 9 is 3
10. if you take 6 from 9, 3 remains
11. if you take 6 from 9, it remains 3
12. 9 divided by 6 is 1 with remainder 3
13. 9 divided by 6 is 1.5

14. divide 30 by 6 is 5
in this case, 30 is dividend, then what is 6 and 5?

15. 3 multiplied by 5 is 15
in this case, what do we call 3, 5 and 15?

16. 2 plus 5 is 7
in this case, what do we call 2, 5, 7?

17. 9 minus 6 is 3
in this case, what do we call 9, 6, 3?

18. 9 divided by 6 is 1 with remainder 3
in this case, how do we call 9, 6, 1. 3

Thanks

[BobK]

Originally Posted by Ju

Would you correct and explain the grammer and usage with examples for me please? I get to make it clear as I need to teach my daughter.

1. divide 6 into 30 is 5 30 divided by 6 is 5
2. divide 30 by 6 is 5 Dividing 30 by 6 gives 5
3. multiply 3 by 5 is 15 (means 5 x 3, right? ) 3 multiplied by 5 is 15
4. 3 multiplied by 5 is 15 (means 3 x 5, right?)
5. add 2 to 5 is 7 Adding 2 to 5 gives 7. I've also heard '2 add 5 makes 7'
6. 2 plus 5 is 7 [Here and elsewhere wherever you have is you could put equals.]
7. substract 6 from 9 is 3 Substracting 6 from 9 gives/leaves 3
8. 9 minus 6 is 3
9. if you take 6 from 9 is 3 I'd prefer 'you get' rather than 'is'
10. if you take 6 from 9, 3 remains OK, but more commonly: '9 take away 6 is/leaves 3'
11. if you take 6 from 9, it remains 3
12. 9 divided by 6 is 1 with remainder 3 OK without the 'with': '1 rem. 3'
13. 9 divided by 6 is 1.5

14. divide 30 by 6 is 5 30 divided by 6 is 5
in this case, 30 is dividend, then what is 6 and 5?
The divisor and the quotient, but I've never heard those words since I went to kindergarten 50 years ago. Nobody uses them nowadays in everyday contexts.

15. 3 multiplied by 5 is 15
in this case, what do we call 3, 5 and 15?
3 and 5 are factors; 15 is the product. You could phrase this problem like this: What is the product of 3 and 5?

16. 2 plus 5 is 7
in this case, what do we call 2, 5, 7?
7 is the sum or the total. I don't know about the 2 and the 5.

17. 9 minus 6 is 3 I'd prefer 'leaves'
in this case, what do we call 9, 6, 3? Pass.

18. 9 divided by 6 is 1 with remainder 3 Better omit the 'with', as before.
in this case, how do we call 9, 6, 1. 3 9, 6, 1 as before. 3 is the remainder.

Thanks

b

PS
Excuse my brusqueness - I was hungry and it was lunch-time. I hope you can make sense of all this; it's not straightforward. Also, consider register; at high-school, it may be normal to say '9 minus 7 equals 2', but your daughter's school teachers (when she gets there - I'm assuming this is pre-school stuff) are more likely to say '9 take away 7 is 2'.

[BobK]

Afterthought about divisions: a common way of expressing '27 divided by 9 is 3' is 'nine/nines into 27 goes/go three [times]'; and '8 into 5 doesn't go' or (rather more childish) '8 into 5: I cannot do it'.

b